.app-content {
	background-color: #E4E4E4;
}
.header {
	height: 40px;
	width: 100%;
	background-color: #FFCC99;
}
.header .setting {
	float: right;
	width: 55px;
	height: 40px;
	line-height: 40px;
	text-align: center;
	color: #FFF;
	font-size: 13px;
	cursor: pointer;
	-moz-user-select: none;
	-webkit-user-select: none;
}
.header .setting:active {
	background-color: #FFD8B2;
}
.z {
	display: block;
	width: 100px;
	height: 100px;
	position: absolute;
	top: 50%;
	left: 50%;
	margin-top: -50px;
	margin-left: -50px;
	line-height: 100px;
	background-color: #FFCC99;
	border-width: 0px;
	color: #FFF;
	text-align: center;
	border-radius: 50px;
	font-size: 18px;
	cursor: pointer;
	-moz-user-select: none;
	-webkit-user-select: none;
}
.z:active {
	background-color: #FFD8B2;
}